Pioneer PD-65 Schem & Mods - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 27th March 2004, 08:51 AM   #1
diyAudio Member
 
Join Date: Mar 2004
Location: Sydney
Smile Pioneer PD-65 Schem & Mods

Hi there,

does anyone have the schematic for a Pioneer PD-65 (1994)?

I need to get specs for the transformers so I can convert the unit from 110V to 240V. There is an off-chance this may be a lost cause as they may be non-standard but I'm willing to try.

Does anyone have recommendations on modifications while the iron is hot?

Many thanks,

Richard
  Reply With Quote
Old 27th March 2004, 07:33 PM   #2
diyAudio Moderator Emeritus
 
jean-paul's Avatar
 
Join Date: Sep 2002
Location: Germany
Hello Richard, is the Pioneers transformer a Bando PTT1110 ? If it is a Bando PTT1109 it is a 120 V only transformer...
__________________
It's only audio. Official member of the Norske Brillegeit Gang.
  Reply With Quote
Old 28th March 2004, 11:23 AM   #3
diyAudio Member
 
Join Date: Mar 2004
Location: Sydney
Hi Jean-Paul,

thanks for the info. I haven't had a chance to open the box again to check the part number.

I think you are right though as there were no other taps/leads on the primary side.

There are actually two transformers as this was a special player with power supplies built into each of the transport and DAC boards. I was hoping the transformers were some standard and I would find a replacement for them with equivalent voltage taps on the secondary side.

I guess not.

Thanks again,

Richard.
  Reply With Quote
Old 28th March 2004, 04:10 PM   #4
diyAudio Moderator Emeritus
 
jean-paul's Avatar
 
Join Date: Sep 2002
Location: Germany
Check which Bando is in it, I have a spare Bando PTT1110 with 230/240 V windings. That could halve your problem
__________________
It's only audio. Official member of the Norske Brillegeit Gang.
  Reply With Quote
Old 28th March 2004, 08:08 PM   #5
diyAudio Member
 
Join Date: Mar 2004
Location: Sydney
JP,

I finally had a chance to open the case. My wife and I have a 7mth old son and he takes a lot of time. I can only do these things when he is asleep.

Anyway the transformers are indeed Bandos but they are as follows:

Transport - PTT1206
DAC - PTT1166

I took pics if you want to see inside.

I'll try and find these on the web now. You've given me the inspiration!!

Thanks man,

Richard.
  Reply With Quote
Old 29th March 2004, 09:43 AM   #6
diyAudio Member
 
Join Date: Mar 2004
Location: Sydney
Hey Jean-Paul,

do you have a website for a supplier of the Bando transformers?

I've tried Google, Yahoo and MSN but have been unsuccessful in finding these.


Many thanks,

Richard.
  Reply With Quote
Old 31st August 2005, 04:46 PM   #7
Ruach is offline Ruach  Singapore
diyAudio Member
 
Join Date: May 2003
Location: Singapore
Hi richardau,

Are you looking for the tranny? I think I can help you source for the 230/240V from the Pioneer service in Singapore.

I believe that they should have spare transformers for the PD-65.

Let me know.
  Reply With Quote
Old 1st September 2005, 02:29 PM   #8
diyAudio Member
 
georgehifi's Avatar
 
Join Date: Sep 2003
Location: Manly Australia (Jewel of the Pacific)
Send a message via MSN to georgehifi
This may help, it's from a PD77 and PD75 similar vintage to your PD65.

Cheers George
Attached Images
File Type: gif pd77 pd75 power transformer 3.gif (71.8 KB, 336 views)
__________________
Avatar : Production Lightspeed Attenuator
www.lightspeedattenuator.com
  Reply With Quote
Old 1st September 2005, 08:28 PM   #9
diyAudio Member
 
Join Date: Mar 2004
Location: Sydney
George,

thanks for the circuit diagram. Unfortunately this is not the same as the PD-65. Mine is a US model. I bought it in Palo Alto. The equivalent global model is a PD-95 according to the manual. The US model has two transformers each with primary windings for 110V only presumably so as to pass FCC UL regs.

Thanks again.

Richard.
  Reply With Quote
Old 1st September 2005, 08:45 PM   #10
wa2ise is offline wa2ise  United States
diyAudio Member
 
wa2ise's Avatar
 
Join Date: Apr 2005
Location: NJ
Another approach is to use a small autotransformer, 230V/115V. Connect the two power transformers in series, and the centertap of the autotransformer connects to the series connection. The autotransformer connects to the mains. The autotransformer handles the difference current between one of the transformers demands more current than the other. The autotransformer can be a small one. It could be a filament transformer or such that has a pair pf primary windings 115/230.

One important thing to worry about is will the 115V transformers handle 50Hz? For the same voltage lower line frequencies require larger cores. A test to run would be to operate the equipment on an external voltage converter transformer, and see if the internal power transformers get hot. If they stay cool, you'd be fine, good to go.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
NEED HELP for Pioneer A400x mods MTO audio Solid State 6 21st January 2009 09:41 PM
Tip33.....anyone got a schem. diesel_tech Solid State 9 23rd March 2007 11:55 PM
Pioneer PD-S06 mods - some experience? Alfetta87 Digital Source 0 8th August 2006 01:55 PM
Pioneer DVD-656 Mods kenlow Digital Source 2 14th January 2004 11:41 AM
Sowter/Pioneer AX-10 Mods rljones Digital Source 21 30th December 2002 06:43 AM


New To Site? Need Help?

All times are GMT. The time now is 09:58 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2